Concentric Type; Lugged Butterfly Valve; Bi-Directional; Soft Seated; Replaceable Seats, F to F:52mm Temp:0 ~+80 °C service:Water Body:A395 Gr.60-40-18; A536 Gr.60-40-18; A536 Gr.65-45-12; JS1030/JC1072 Seat:EPDM Peroxide Cured Ball/Disc:B148 C95400 C95500 / C95800 Stem:AISI 420 Bolting:B7 / 2H Boltings shall be Hot Dip Galvanized Operator:LEVER + LD BS EN 10204 3.1 Painting:QP-SPC-L-002; Sch.12 100%-DP & PMI